From De vice Manager, choose FC > VSAN or click the VSAN icon on the toolbar. You see the VSAN dialog box on De vice Manager. Each VSAN can contain up to 239 switches and has an independent address space that allows identical Fibre Channel IDs (FC IDs) to be used simultaneously in different VSANs. This chapter includes the following sections: • About VSANs • VSAN Configuration • Displaying Static VSAN Configuration •. Note By default, all Cisco MDS 9000 Family switches belong to VSAN 1. To create and configure VSANs. When an activ e VSAN is deleted, all of its attrib utes are removed from the running configuration.